Human beings are born with a variety of genetic changes that their parents do not possess. These mutations can range from harmless variations to potentially harmful ones, including some that could be fatal if not for the fact that humans have two copies of every gene. This redundancy allows one healthy copy of a gene to compensate for a faulty one.
The deeper meaning behind this statement is about the complexity and resilience of human genetics. It highlights how each individual is unique due to these genetic variations, which can lead to differences in physical traits or susceptibility to diseases. Moreover, it underscores the importance of genetic redundancy as a protective mechanism, illustrating nature's way of safeguarding against genetic errors that could otherwise hinder survival or development. This quote also touches on the broader concept of biological inheritance and the ongoing evolution of species through mutation.
The author of this insightful statement is Sam Kean, an American science writer known for his engaging books and articles on genetics and the periodic table. His work often combines scientific accuracy with accessible language to educate a wide audience about complex topics in biology and chemistry.